These feathers provide lightweight insulation.
What are down feathers?
This is the grooming process that birds do often to keep their feathers healthy.
What is preening?
This fluid feeds an unhatched chick.
What is the yolk?
Animals that regulate their body temperature by external means are considered this.
What is cold-blooded?
This is the largest known fish.
What is the whale shark?
This substance makes up a bird's feathers.
What is keratin?
This substance surrounds the outermost shell of an egg.
What is calcium carbonate?
This is the built-in knowledge that an animal is born with.
What is instinct?
This is the scientific term for fish eggs.
What is roe?
This group of cartilaginous fish includes skates and sawfish.
What are rays?
This term refers to a bird's feathers.
What is plumage?
This is the large ridge on a bird's sternum that provides an anchor for the flight muscles.
What is the keel?
This is the fast fastest flying bird.
What is the peregrine Falcon?
This sperm-containing fluid is released by male fish.
What is milt?
These are the tooth like scales found on sharks.
What are denticles?
These are the migration routes used by birds year after year.
What are flyways?
This is the food storage sack located in a bird's esophagus.
What is the crop?
This group consists of carnivorous hunting birds.
What are birds of prey?
A fish’s “W” shaped bands of skeletal muscles are made of these.
What are myomeres?
These paired holes are used for inhalation by sharks and rays.
What are spiracles?
This is when birds save energy by flapping for a few seconds and then gliding for a few seconds.
What is intermittent flight?
This is a special organ that allows birds to produce sound.
What is syrinx?
This term refers to a chick that hatches with insulating feathers and can run or swim soon after birth.
What is precocial?
The gills of bony fish are covered by this hard, movable, protective plate.
What is an operculum?
This type of cartilaginous fish lacks jaws and does not have a sucking organ.
What is a hagfish?